Hi, everyone!
I have written a VUMAT for the model in 'On modeling the deformation and fracture response of glassy polymers due to shear-yielding and crazing, Gearing and Anand, IJSS, 2004'. The VUMAT has been debugged for one element sucessfully. But when it comes to multiple elements, the VUMAT will goes wrong like the attatched picture. It can be run, but no results can be obtained.
Looking forward your feedback.
I would recommend to look at the .dat and .sta files or to run the file from the command line to see where it stops. It may be a segmentation fault (this sometimes happens with Abaqus/Explicit) caused by some error in your routine. Add test output to the routine to see whether it is entered at all.
To get more information than what the Abaqus logs tell you, you need to create a debug version of your VUMAT. This debug version will dump every variable it touches into a log file using the print command. That way you have a complete picture of what your code is doing up to the point where it faults. Looking at the evolution of the variables should give you a good start.
Thank you Martin and Louis!
I change another computer to run the vumat and it can be run with result. Maybe my program is not very robust. Maybe the subroutine has not been installed in the right way.
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